He was also hailed as one of the heroes of the Battle of the Atlantic. He had already won the Nobel Prize for Physics, in 1948, before he lived at the house.

Ronald Hutton, chairman of the English Heritage blue plaque panel, called Blackett and Beckett "giants in their fields" and added: "These two plaques mark their achievements and celebrate their connection to London."

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Patrick Blackett won the Nobel Prize for Physics

There are now 19 properties in London which have double blue plaques, including:

29 Fitzroy Square, where writers George Bernard Shaw and Virginia Woolf both lived

20 Maresfield Gardens, where Sigmund Freud spent the final year of his life and his daughter, child psychoanalysis pioneer, Anna Freud, lived and worked

4 Carlton Gardens, where British Prime Minister Lord Palmerston once lived and where Gen Charles de Gaulle set up the headquarters of the Free French Forces

Blue Plaque facts

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The scheme began in 1866 after the idea of erecting "memorial tablets" was first proposed by William Ewart MP in the House of Commons in 1863

The first plaque was for the poet Lord Byron, although this was lost when the building it was on was demolished in 1889

More than 900 plaques have been unveiled across London

An official plaque can only be proposed for a person who has been dead for at least 20 years

A plaque put up in Chalk Farm in 1937 to mark Karl Marx's final address had to be taken down because it was repeatedly vandalised